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High 8.8Published Nov 5, 2025

CVE-2025-12779Improper handling of the authentication token in the Amazon WorkSpaces client for Linux, versions 2023.0 through 2024.8, may expose the authentication token for DCV-based WorkSpaces to other local us…

Updated under an hour ago ()

Does this affect you?

It affects Amazon WorkSpaces. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Improper handling of the authentication token in the Amazon WorkSpaces client for Linux, versions 2023.0 through 2024.8, may expose the authentication token for DCV-based WorkSpaces to other local users on the same client machine. Under certain circumstances, a local user may be able to extract another local user's authentication token from the shared client machine and access their WorkSpace. To mitigate this issue, users should upgrade to the Amazon WorkSpaces client for Linux version 2025.0 or later.

CVSS
8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-497
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
AMZN
NVD analysis
Deferred
Record last updated
Feb 26, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Amazon Amazon WorkSpaces
amazon:workspaces (from the name)
2025.0 not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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